Litter mat



FIG. 1 is a top perspective view of a litter mat;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a rear elevational view of FIG. 1;

FIG. 4 is a left side elevational view of FIG. 1;

FIG. 5 is a right side elevational view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1;

FIG. 7 is a bottom plan view of FIG. 1;

FIG. 8 is an enlarged perspective view of the encircled portion of the litter mat as designated No. 8 in FIG. 1;

FIG. 9 is an enlarged top plan view of the encircled portion of the litter mat as designated No. 9 in FIG. 6;

FIG. 10 is a magnified perspective view of the encircled portion of the litter mat as designated No. 10 in FIG. 8; and,

FIG. 11 is a magnified perspective view of the encircled portion of the litter mat as designated No. 11 in FIG. 1.

The dash-dash broken lines depict portions of the litter mat that form no part of the claimed design. The long-short-long dash lines depict the locations of the enlarged and magnified portions. These long-short-long dash lines do not form part of the claimed design. 

CLAIM The ornamental design for a litter mat, as shown and described. 